#include <stdio.h>
#include <iostream>
#include <math.h>
using namespace std;

int main()
{
int x1,x2,r;
cout<<"Vedite x1 =";
cin>>x1;
cout<<"Vedite x2 =";
cin>>x2;
cout<<"Vash radius =";
r = x1-x2;
if (r<0) r = -r;
cout<<r;
return 0;
}
